Oscillating mechanism for the oscillating wires or sieves of paper making and other machinery



April 27, 1937. K. LURZ ET AL Z,O78;715 OSQILLATING MECHANISM FOR THEOSCILLATING WIRES OR SIEVES OF PAPER MAKING AND OTHER MACHINERY FiledNov. 9, 1934 2 Sheets-Sheet 1 Apnl 27, 1937. K. LURZ ET AL OSCILLATINECHANISM FOR THE OSCILLATING WIRES HER MACHINERY OR SIEVES PAPER MAKINGAND OT Filed Nov. 9, 1934 2 Sheets-Sheet 2 w v 4! x o $1 f-Mm PatentedApr. 27, 1 937 i UNETED STATES PATENT OFFICE OSCILLATING MECHANISM FORTHE OSCIL- LATIN G WIRES OR SIEVES OF PAPER MAKING AND OTHER MACHINERYKlemens Lurz and Karl Schiinemann, Heidenheim-on-the-Brenz, GermanyApplication November 9, 1934, Serial No. 752,300 In Germany November 13,1933 3 Claims. (01. 74-61) Our invention relates to mechanism forreguaxially on the cylinder ll. I4 is a spindle rolating oscillatorymovements of oscillating sieves tatably mounted in a bearing l5 fixed inthe in paper making machinery. It has particular inner end of the cap I2and being axially disreference to mechanism comprising a pair ofplaceable, but secured against rotation, in the.

5 wheels or discs forming gyrating masses rotathollow shaft 4. On thespindle I4 is formed a 5 ing in equal sense, these masses having as arule thread It of high pitch meshing with a similar a common centre ofgravity. threading in the extended portion 9 of the hub It is an objectof our invention to provide of the loose wheel or disc 8. When the capI2 means whereby the relative position of the two is turned by means ofthe hand wheel, the spindle 10 wheels or discs with respect to theircentres of i4 is displaced axially and being coupled with 10 gravity canbe readily regulated within any dethe loose disc 8 by means of the highpitch threadsired limits and more especially at higher numing l6, willthen impart to this disc an angular bers of oscillation. displacementrelative to the fast disc 5.

In the mechanism according to the present in- In the mechanismillustrated in Figs. 2 to 6 5 vention the relative angular position ofthe two the threaded spindle l4 forming part of the eccentric orgyrating masses rotating together mechanism shown in Fig. l is replacedby a spinabout the same axis, the wheels or discs carrying dle, whichtogether with the nut mounted therethese masses are mounted on a hollowshaft and on can be manufactured in a particularly simple a spindleformed with a high pitch threading is manner and affords a particularlygreat mobility.

arranged for axial movement within this shaft As shown in the drawings,the spindle 45 is 20 for turning the loose wheel or disc relative toformed as a polygonal bar with helically wound the wheel or disc fixedon the shaft. sides and edges. While the spindle shown in In thedrawings affixed to this specification Fig. 4 is quadrangular, we may aswell use a and forming part thereof, two mechanisms emspindle 50 oftriangular (Fig. 5) or of pentagonal g5 bodying our invention areillustrated diagramsection (5i in Fig. 6). 5 matically by way ofexample. On the spindle 45 is mounted a nut 46 of cor- In the drawingsresponding inner configuration, this nut being Fig. 1 is an axialsection of the first of these caused to rotate on the spindle beingshifted in mechanisms; axial direction and transmitting its rotatoryFig. 2 is an axial section of the second mechamovement by means of thesleeve 41 surrounding 30 nism, While it onto the loose disc or wheel 44,the hub of Fig. 3 is an axial section, partly in elevation, whichsurrounds the threaded spindle 45. The and nut 46 is fixed to the sleeve41 by means of a Figs. 4, 5, and 6, respectively are cross sections nut48. 4| is the fast wheel or disc, its hollow of the spindle andaccessories serving to adjust hub or shaft 42 surrounding the spindle 45and 35 the loose wheel or disc. having the pulley 43 mounted thereon. is

Referring to the drawings and first to Fig. 1, the casing enclosing thetwo wheels or discs. I are leaf springs supporting the casing 2 and 3 49is a cap embracing the outer end of spindle are bearings mounted in thiscasing. 4 is the and serving to displace same axially.

40 hollow shaft and 5 is the fast wheel or disc fixed Obviously, insteadof imparting axial move- 40 on this shaft and being equipped with aneccenment to the spindle 45 and thereby turning the trically locatedgyrating mass 1. 8 is the loose nut 46, we might also move the nutaxially and wheel or disc mounted on shaft 4 and surrounded turn thespindle. by the flange of disc 5. II] is an eccentrically We wish it tobe understood that we do not 45 located gyrating mass fixed to the loosedisc 8. desire to be limited to the exact details of con- 45 B is thepulley mounted on shaft 4. 9 is the hub struction shown and describedfor obvious modiof the loose disc 8, this hub being extended tofications will occur to a person skilled in the art. embrace and supportthe hollow shaft 4. On the We 1 right hand side of easing 2 is fixed acylindrical 1. Means for angularly adjusting, in oscillat- 5 extensionII, which is surrounded by a cap l2 ing mechanism for the oscillatingwires or sieves 50 extending into the cylinder II and being threaded ofpaper making or other machinery, one gyratso as to mesh with the innerthread I! formed ing mass relative to the other, comprising in comnearthe outer end of the cylinder H. I3 is a bination a hollow shaft, agyrating mass fixed to hand Wheel u e on the p and v g and anothergyrating mass loose on said shaft, 9.

to turn it, whereby the cap l2 can be displaced spindle formed with highpitch threading ex 55 tending in said shaft, a nut on and meshing withsaid spindle, one of said meshing parts being coupled with said loosemass for rotation in common, and means for axially displacing the othermeshing part.

2. Means for angularly adjusting, in oscillating mechanism for theoscillating wires or sieves of paper making or other machinery, onegyrating mass relative to the other, comprising in com bination a hollowshaft, a gyrating mass fixed to and another gyrating mass loose on saidshaft, a spindle having the cross-section of a polygon with curvedhelically extending sides forming a high pitch threading extending insaid shaft, a nut on and meshing with said spindle, one of said meshingparts being coupled with said loose mass for rotation in common, andmeans for axially displacing the other meshing part.

3. Means for angularly adjusting, in oscillating mechanism for theoscillating wires or sieves of paper making or other machinery, onegyrating mass relative to the other, comprising in combination a hollowshaft, a gyrating mass fixed to and another gyrating mass loose on saidshaft, a spindle formed with high pitch threading extending in saidshaft, a nut on and meshing with said spindle, said nut being coupledwith said loose mass for rotation in common and means for axiallydisplacing said spindle.

